/// <summary>
/// Handle decision from buyer to withdrawl value > max
/// </summary>
/// <param name="decision"></param>
/// <param name="id"></param>
/// <param name="value"></param>
/// <returns></returns>
private static bool solveMaxFund(bool decision, string id, BigInteger value)
{
StorageMap maxfund = Storage.CurrentContext.CreateMap(id);
//Check value
BigInteger storedValue = maxfund.Get("value").AsBigInteger();
if (value <= 0 || storedValue != value)
{
Error("No record found or value not matched");
return(false);
}
byte[] buyer = maxfund.Get("from");
//validate buyer
if (!Runtime.CheckWitness(buyer))
{
Error("Authorization failed");
return(false);
}
byte[] merchant = maxfund.Get("to");
//Delete the case which has maxfund
// and do transfer or reject it
maxfund.Delete("value");
maxfund.Delete("from");
maxfund.Delete("to");
DeleteMaxFund(id);
if (decision) //grant the request
{
return(NEP.Transfer(buyer, merchant, value, (uint)ModuleCommission.getCommission("scheduleP")));
}
RejectMaxFund(id);
return(false);
}
/***********************************************
* Event event definition
* ***************************************/
/// <summary>
/// This function is to directly transfer tokens from one user (from) to another user (to)
/// if the calling is not from "from", throw error events "Authorization failed"
/// success processing will create event "transferred"
///
/// </summary>
/// <param name="from"></param> address of paying user, hash 160
/// <param name="to"></param> address of benefit, hash 160, different from "to"
/// <param name="amount"></param> number of tokens to be transferred, > 0 is required
/// <returns></returns>
private static bool InstantPay(byte[] from, byte[] to, BigInteger amount)
{
if (!Runtime.CheckWitness(from) || !Utils.ValidateNEOAddress(to))
{
Error("Authorization failed");
return(false);
}
return(NEP.Transfer(from, to, amount, (uint)ModuleCommission.getCommission("directP")));
}
private static bool DoSchedulePayment(byte[] from, byte[] to, BigInteger value, byte[] txid, StorageMap agreement, bool isToHandleMaxFund)
//long scheduleTime, BigInteger scheduleTypeFromStorage)
{
//Evaluate time
long currentTime = UAV.GetCurrentTime();
uint scheduleType = (uint)agreement.Get("schedule").AsBigInteger();
long scheduleTime = (long)agreement.Get("nextTime").AsBigInteger();
if (currentTime < scheduleTime)
{
Error("Pull schedule payment: not in time yet");
return(false);
}
uint[] paymentInfo = new uint[3];
//get payment possibilities
// 0 - nexTime
// 1 - count
// 2 - iswithdraw
if (scheduleType < 3)
{
paymentInfo = ProcessDWPayment(scheduleType, currentTime, scheduleTime);
}
else
{
paymentInfo = ProcessMPayment(currentTime, scheduleTime);
}
//update
uint duration = (uint)agreement.Get("duration").AsBigInteger();
duration = duration - paymentInfo[1];
if (duration < 0)
{
Error("Contract is no longer valid");
DeleteAgreement(agreement, txid);
return(false);
}
else if (duration == 0)
{
DeleteAgreement(agreement, txid);
}
else
{
agreement.Put("duration", duration);
agreement.Put("nextTime", scheduleTime + paymentInfo[0]);
}
//---if over maxfund
if (isToHandleMaxFund)
{
string maxfundId = Helper.Concat(txid, Helper.AsByteArray(duration)).AsString();
StorageMap maxFundMap = Storage.CurrentContext.CreateMap(maxfundId);
maxFundMap.Put("value", value);
maxFundMap.Put("from", from);
maxFundMap.Put("to", to);
//Throw event
MaxFund(maxfundId, value, from, to);
return(false);
}
//-----End of handle max fund
if (paymentInfo[2] == 1 && duration >= 0) //case of withdrwal
{
return(NEP.Transfer(from, to, value, (uint)ModuleCommission.getCommission("scheduleP")));
}
//if withdrawal
Error("Pull scheduled payment: not duly");
return(false);
}
//PullPayment payment - except schedule
/// <summary>
/// To pull avaiable tokens from admin account to benefit account (to)
/// -if the calling is not from "to", throw error events "Authorization failed"
/// -if successfully process, there is a "update_holding" event to be created,
/// if there is balance to be withdrawn, "transferred" event when be fired - otherwise, there will be error event
/// </summary>
/// <param name="to"></param> address of benefit, hash 160, different from "to"
/// <param name="value"></param> number of tokens to be handled, >0 is required
/// <returns></returns>
private static bool PullPayment(byte[] to, BigInteger value)
{
if (!Runtime.CheckWitness(to))
{
Error("Authorization failed");
return(false);
}
UpdateHoldings(to, 0);
bool success = NEP.Transfer(TOK.Owner, to, Storage.Get(Storage.CurrentContext, to + "_holding").AsBigInteger(), (uint)ModuleCommission.getCommission("singleP"));
if (success)
{
Storage.Put(Storage.CurrentContext, to + "_holding", 0); //return value
return(true);
}
return(false);
}